GM: IF THE SERVICE SUSPENSION SYSTEM IS DISPLAYED ON THE DIC, THE TRIM HEIGHT MAY BE INCORRECT, LOOSE COMPRESSOR INLET HOSE, OR THE COMPRESSOR SELF TEST MAY BE INOPERATIVE. ALSO INCLUDED SUBURBAN LD MY 2001-2013, YUKON DENALI XL MY 2013, YUKON XL LD 2001-2013 *JS
